It is impossible to accurately
examine or cut and polish a stone without good magnification. We suggest using
10X or higher magnification for faceting so you can see if all the fine scratches
have been eliminated during polishing.
Closing one eye, or squinting while
looking through loupes can cause eye strain. To reduce eye strain, keep both eyes
open when looking through the loupe. This may take a while to get used to, but
it can prevent you from getting headaches. After all, faceting is supposed to